import keyword

'''
['False', 'None', 'True', 'and', 'as', 'assert', 'async', 'await', 
'break', 'class', 'continue', 'def', 'del', 'elif', 'else', 
'except', 'finally', 'for', 'from', 'global', 'if', 'import', 'in',
 'is', 'lambda', 'nonlocal', 'not', 'or', 'pass', 'raise', 
 'return', 'try', 'while', 'with', 'yield']
'''
# keywords 关键字
print(keyword.kwlist)

age = 0
age = 18
'''
可以删除一个变量 del 函数
'''
# del age
print("age =", age)

'''
num1 = int(input("请输入数字："))
num2 = int(input("请输入数字："))
print("num1 + num2 =", (num1 + num1))

'''

# 查看变量的类型 <class 'int'>
print(type(age))

# 查看变量的地址 140707775673136
print(id(age))
